Everything You Need to Know About Undercover High School Episodes 11 and 12: Release Date, Time, Where to Watch, and What Happens Next with Seo Kang Joon and Jin Ki Joo
The K-drama Undercover High School, starring Seo Kang Joon and Jin Ki Joo, has kept viewers hooked with its blend of action, comedy, and romance. Having crossed its midpoint, the series has taken a darker turn, setting the stage for an intense showdown in episodes 11 and 12. Here’s everything you need to know about the release details and what thrilling developments await Jung Hae Seong and Oh Soo Ah.
About Undercover High School
Undercover High School follows Jung Hae Seong (Seo Kang Joon), an elite National Intelligence Service (NIS) agent who, after a mission failure, is sent undercover as a high school student at Byeongmun High School. His mission? To locate Emperor Gojong’s missing gold bars. Along the way, he crosses paths with his homeroom teacher, Oh Soo Ah (Jin Ki Joo), whose connection to his past complicates his mission. Directed by Choi Jung-in and written by Im Young-bin, the drama has earned a solid 5.6% viewership rating (Nielsen Korea) since its premiere on February 21, 2025.
Release Date and Time for Episodes 11 and 12
Mark your calendars! Episodes 11 and 12 of Undercover High School are scheduled to air as follows:
Episode 11: March 28, 2025, at 9:50 p.m. KST
Episode 12: March 29, 2025, at 9:50 p.m. KST
For international viewers, the episodes will be available to stream at 7:50 a.m. EST (or 6:20 p.m. IST) on the same days.
Where to Watch
South Korean Viewers: Tune in to MBC TV, or stream on TVING or Wavve.
International Fans (including India): Watch on Viki or Kocowa.
What Happened in Episodes 9 and 10?
The latest episodes delivered major twists. Jung Hae Seong avenged Oh Soo Ah’s stabbing by exposing math teacher Lee Jun Ho (Noh Jong Hyun) for rigging the school’s rankings under the orders of the cunning Seo Myeong Ju (Kim Shin Rok). After Seo Myeong Ju’s detention, it seemed Byeongmun High School might finally reform—until she returned, revealing her sway over corrupt NIS agents. No longer undercover, Hae Seong now faces her as an NIS agent, while she threatens to use Oh Soo Ah as leverage against him.
Episodes 11 and 12 promise high stakes and emotional depth:
Jung Hae Seong’s Resolve: Determined to dismantle the corrupt system, Hae Seong aims to save both the school and Oh Soo Ah. His recent confession—“I like you a lot”—adds a romantic layer to his mission.
Seo Myeong Ju’s Counterattack: With her influence over the NIS exposed, Seo Myeong Ju will likely escalate her threats, using Oh Soo Ah as a bargaining chip.
A Painful Past Revealed: Hae Seong uncovers that his NIS team leader’s guilt over distrusting his father contributed to his disappearance, tying personal stakes to his fight against corruption.
Expect intense confrontations, heartfelt moments, and potentially game-changing revelations as the series nears its climax.
Why You Shouldn’t Miss It
Undercover High School blends spy intrigue with high school drama, elevated by Seo Kang Joon’s much-anticipated return post-military service and his undeniable chemistry with Jin Ki Joo. With only a few episodes left, the stakes are higher than ever. Don’t miss episodes 11 and 12 on March 28 and 29, 2025—stream them on Viki, Kocowa, or catch them on MBC TV. Stay tuned for more updates as Jung Hae Seong’s journey unfolds!
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